National Inspection Authority is a reference resource from Authority Network America focused on construction inspection in the United States. It organizes information about a complex field shaped by federal requirements, state licensing, local enforcement, and third-party certification. Rather than presenting itself as an inspection contractor, the site provides guidance and reference topics to help users understand inspection rules, processes, and responsibilities.

Its coverage includes residential, commercial, industrial, high-rise, modular, and new-construction inspections, as well as pre-construction, final, quality-control, defect, and special inspections. It also addresses trade and system checks such as foundations, framing, electrical, plumbing, HVAC, insulation, drywall, roofing, masonry, structural steel, and elevators. Code and compliance resources cover building standards, IBC and IRC requirements, energy efficiency, accessibility, fire safety, green building, OSHA, and certificates of occupancy. Additional topics explain inspector credentials, licensing, authority, permits, scheduling, reports, documentation, disputes, failed-inspection remediation, and inspection technology. The site also offers provider listings and construction and inspection provider resources, alongside sourced articles, official feeds, corrections, and editorial standards.